BQ24081 具有 1A FET、定时器使能端和温度感应功能的单节锂离子充电器 | 德州仪器

BQ24081 (正在供货)

具有 1A FET、定时器使能端和温度感应功能的单节锂离子充电器

具有 1A FET、定时器使能端和温度感应功能的单节锂离子充电器 - BQ24081


The bq24080 and bq24081 are highly integrated and flexible Li-Ion linear charge devices targeted at space-limited charger applications. They offer an integrated power FET and current sensor, high-accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device. An external resistor sets the magnitude of the charge current.

The device charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination. The device automatically restarts the charge if the battery voltage falls below an internal threshold. The device automatically enters sleep mode when the ac adapter is removed.


  • Integrated Power FET and Current Sensor for Up to 1-A Charge Applications From AC Adapter
  • Precharge Conditioning With Safety Timer
  • Charge and Power-Good Status Output
  • Automatic Sleep Mode for Low Power Consumption
  • Integrated Charge-Current Monitor
  • Fixed 7-Hour Fast Charge Safety Timer
  • Ideal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-Pol Packs in Space-Limited Portable Applications
  • Small 3.00-mm × 3.00-mm VSON Package

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参数 与其它产品相比 电池充电器IC

Number of Series Cells
Cell Chemistry
Charge Current (Max) (A)
Operating Vin (Min) (V)
Operating Vin (Max) (V)
Absolute Vin (safety rating) (Max) ((V))
Battery Charge Voltage (Min) (V)
Battery Charge Voltage (Max) (V)
Control Interface
Control Topology
Operating Temperature Range (C)
BQ24081 BQ24080 BQ24083
1     1     1    
Charger     Charger     Charger    
Li-Ion/Li-Polymer     Li-Ion/Li-Polymer     Li-Ion/Li-Polymer    
1     1     1    
4.5     4.5     4.5    
6.5     6.5     6.5    
7     7     7    
4.2     4.2     4.2    
4.2     4.2     4.2    
Integrated FET
Temp Monitoring (Thermistor Pin)
Integrated FET
Temp Monitoring (Thermistor Pin)
Integrated FET
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Standalone (RC-Settable)     Standalone (RC-Settable)     Standalone (RC-Settable)    
Linear     Linear     Linear    
Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 125    
10VSON     10VSON     10VSON